http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Cone receptors in the human eye lose their color sensitivity with age, but our subjective experience of color remains largely unchanged over the years. This ability to compensate for age-related changes in color perception rests in higher levels of the visual system, according to research published May 8 in the open access journal PLOS ONE by Sophie Wuerger from the University of Liverpool, UK. http://medicalxpress.com/news/2013-05-brain-eye-mechanisms-vision-constant.html Cardiology Wed, 08 May 2013 17:00:04 EST news287249626 Pain is not one-dimensional but a combination of inflammatory reactions as well as of processes in the central nervous system and memory cells. This is the result of a current study by pain researchers at the MedUni Vienna led by Burkhard Gustorff, head of the university course in interdisciplinary pain medicine (ismed). The study has now been published in the leading journal Pain. http://medicalxpress.com/news/2013-05-pain-one-dimensional.html Medical research Wed, 01 May 2013 09:40:04 EST news286619998 Functional loss of limb control in individuals with spinal cord injury or stroke can be caused by interruption of the neural pathways between brain and spinal cord, although the neural circuits located above and below the lesion remain functional. An artificial neural connection that bridges the lost pathway and connects brain to spinal circuits has potential to ameliorate the functional loss. http://medicalxpress.com/news/2013-04-paretic-function-artificial-neural-bridging.html Neuroscience Thu, 11 Apr 2013 02:00:01 EST news284837726 New research from the University of Georgia has identified the neural pathways in an insect brain tied to eating for pleasure, a discovery that sheds light on mirror impulsive eating pathways in the human brain. http://medicalxpress.com/news/2013-02-brain-pathway-triggering-impulsive.html Medical research Thu, 28 Feb 2013 12:36:33 EST news281277384 We should reconsider how we use antidepressants more effectively. The latest studies have shown that antidepressants restore the capacity of certain areas of the brain to repair abnormal neural pathways. According to neuroscientist Eero Castrén, the recipient of EUR 2.5 million of ERC funding, recovery requires redirection of these pathways through practice, rehabilitation or therapy. http://medicalxpress.com/news/2013-02-antidepressants.html Psychology & Psychiatry Fri, 22 Feb 2013 09:38:20 EST news280748191 (Medical Xpress)—Imagine you are driving a car, and the harder you press on the accelerator, the harder an invisible foot presses on the brake. That's what happens when obese people diet – the less food they eat, the less energy they burn, and the less weight they lose. http://medicalxpress.com/news/2013-02-brain-circuit-hard-obese-people.html Medical research Wed, 06 Feb 2013 10:59:07 EST news279370741 High levels of family stress in infancy are linked to differences in everyday brain function and anxiety in teenage girls, according to new results of a long-running population study by University of Wisconsin-Madison scientists. http://medicalxpress.com/news/2012-11-early-stress-sensitize-girls-brains.html Neuroscience Sun, 11 Nov 2012 13:00:30 EST news271860897 The time most of us spend looking at a screen has rapidly increased over the past decade. If we're not at work on the computer, we're likely to stay tuned into the online sphere via a smart phone or tablet. Shelves of books are being replaced by a single e-book reader; and television shows and movies are available anywhere, any time. http://medicalxpress.com/news/2012-10-medical-myth-screen-eyes.html Health Fri, 19 Oct 2012 08:00:30 EST news269852408 If only there were a way to forget that humiliating faux pas at last night's dinner party. It turns out there's not one, but two opposite ways in which the brain allows us to voluntarily forget unwanted memories, according to a study published by Cell Press October 17 in the journal Neuron. The findings may explain how individuals can cope with undesirable experiences and could lead to the development of treatments to improve disorders of memory control. http://medicalxpress.com/news/2012-10-ways-brain-voluntarily-unwanted-memories.html Neuroscience Wed, 17 Oct 2012 12:00:05 EST news269676277 Researchers at the Hebrew University of Jerusalem have discovered that a neuronal pathway—part of the autonomic nervous system—reaches the bones and participates in the control of bone development. http://medicalxpress.com/news/2012-09-neural-brain-to-bone-pathway-skeletal.html Medical research Mon, 03 Sep 2012 10:27:26 EST news265886837 Shortly after the Hubble Space Telescope went into orbit in 1990 it was discovered that the craft had blurred vision. Fortunately, Space Shuttle astronauts were able to remedy the problem a few years later with supplemental optics. Now, a team of Italian researchers has performed a similar sight-correcting feat for a microscope imaging technique designed to explore a universe seemingly as vast as Hubble's but at the opposite end of the size spectrum—the neural pathways of the brain. http://medicalxpress.com/news/2012-08-microscopy-method-sharper-view-brain.html Neuroscience Thu, 23 Aug 2012 11:53:31 EST news264941529 A new study proposes a communication routing strategy for the brain that mimics the American highway system, with the bulk of the traffic leaving the local and feeder neural pathways to spend as much time as possible on the longer, higher-capacity passages through an influential network of hubs, the so-called rich club. http://medicalxpress.com/news/2012-06-highways-brain-high-cost-high-capacity.html Neuroscience Mon, 18 Jun 2012 15:00:11 EST news259239686 A genetically-modified version of the rabies virus is helping scientists at Harvard to trace neural pathways in the brain, a research effort that could one day lead to treatments for Parkinson's disease and addiction. http://medicalxpress.com/news/2012-06-rabies-virus-tracks-dopamine-neurons.html Neuroscience Wed, 06 Jun 2012 12:57:14 EST news258206224 Patients who are blind in one side of their visual field benefit from presentation of sounds on the affected side. After passively hearing sounds for an hour, their visual detection of light stimuli in the blind half of their visual field improved significantly. Neural pathways that simultaneously process information from different senses are responsible for this effect. http://medicalxpress.com/news/2012-05-method-treatment-visual-field-defects.html Neuroscience Wed, 30 May 2012 09:47:51 EST news257590061 A new technique for analyzing brain images offers the possibility of using magnetic resonance imaging (MRI) to predict the rate of progression and physical path of many degenerative brain diseases, report scientists at the San Francisco VA Medical Center and the University of California, San Francisco. http://medicalxpress.com/news/2012-04-mri-technique-dementias.html Neuroscience Tue, 10 Apr 2012 17:24:10 EST news253297401 A powerful new imaging technique called High Definition Fiber Tracking (HDFT) will allow doctors to clearly see for the first time neural connections broken by traumatic brain injury (TBI) and other disorders, much like X-rays show a fractured bone, according to researchers from the University of Pittsburgh in a report published online today in the Journal of Neurosurgery. http://medicalxpress.com/news/2012-03-high-definition-fiber-tracking-reveals.html Surgery Fri, 02 Mar 2012 04:50:03 EST news249884660 In a scientific first that potentially could shed new light on how signals travel in the brain, how learning alters neural pathways, and might lead to speedier drug development, scientists at Harvard have created genetically-altered neurons that light up as they fire. http://medicalxpress.com/news/2011-11-neurons_1.html Neuroscience Tue, 29 Nov 2011 14:50:04 EST news241796608 (Medical Xpress) -- Distinct neural pathways are important for different aspects of language processing, researchers have discovered, studying patients with language impairments caused by neurodegenerative diseases. http://medicalxpress.com/news/2011-11-brain-words-sentences.html Neuroscience Thu, 24 Nov 2011 07:58:12 EST news241343822 Researchers at the Center for Translational Social Neuroscience (CTSN) at Emory University are focusing on prairie voles as a new model to screen the effectiveness of drugs to treat autism. http://medicalxpress.com/news/2011-04-social-bonding-prairie-voles-autism.html Psychology & Psychiatry Thu, 28 Apr 2011 11:31:21 EST news223209067